diff --git a/src/lang/en.ts b/src/lang/en.ts
index 4b4ae98e..e3c3e488 100644
--- a/src/lang/en.ts
+++ b/src/lang/en.ts
@@ -164,6 +164,7 @@ export const languageEnglish = {
         translatorNote: "Here, you can add a unique translation prompt for each character. This option only applies when using the Ax. model for translation. To apply it, include `{{slot::tnote}}` in the language settings. It doesn't work in group chats.",
         groupInnerFormat: "This defines a format that is used in group chat for characters that isn't speaker. if it is not blank, it will use this format instead of the default format. if `Group Other Bot Role` is `assistant`, it will also be applied to the speaker.",
         groupOtherBotRole: "This defines a role that is used in group chat for characters that isn't speaker.",
+        chatHTML: "A HTML that would be inserted as each chat.\n\nYou can use CBS and special tags.\n- `<risutext>`: a textbox that would be used to render text\n- `<risuicon>`: an icon for user or assistant\n- `<risubuttons>`: icon buttons for chat edit, translations and etc.\n- `<risugeninfo>`: generation information button."
     },
     setup: {
         chooseProvider: "Choose AI Provider",
@@ -749,4 +750,5 @@ export const languageEnglish = {
     groupInnerFormat: "Non-Speaker Inner Format",
     groupOtherBotRole: "Non-Speaker Role in Group",
     defineCustomGUI: "Define Custom GUI",
+    chatHTML: "Chat HTML",
 }
\ No newline at end of file
diff --git a/src/lib/ChatScreens/Chat.svelte b/src/lib/ChatScreens/Chat.svelte
index bfa203de..ce4d14ec 100644
--- a/src/lib/ChatScreens/Chat.svelte
+++ b/src/lib/ChatScreens/Chat.svelte
@@ -191,6 +191,19 @@
     onDestroy(()=>{
         unsubscribers.forEach(u => u())
     })
+
+    function RenderGUIHtml(html:string){
+        try {
+            const parser = new DOMParser()
+            const doc = parser.parseFromString(risuChatParser(html ?? ''), 'text/html')
+            console.log(doc.body)
+            return doc.body   
+        } catch (error) {
+            const placeholder = document.createElement('div')
+            return placeholder
+        }
+    }
+
 </script>
 
 
@@ -227,7 +240,7 @@
     {:else}
         <!-- svelte-ignore a11y_click_events_have_key_events -->
         <!-- svelte-ignore a11y_no_static_element_interactions -->
-        <span class="text chat chattext prose minw-0" class:prose-invert={$ColorSchemeTypeStore} onclick={() => {
+        <span class="text chat-width chattext prose minw-0" class:prose-invert={$ColorSchemeTypeStore} onclick={() => {
             if(DBState.db.clickToEdit && idx > -1){
                 editMode = true
             }
@@ -336,6 +349,148 @@
     {/if}
 {/snippet}
 
+{#snippet renderGuiHtmlPart(dom:HTMLElement)}
+    {#if dom.tagName === 'IMG'}
+        <img class={dom.getAttribute('class') ?? ''} alt="" style={dom.getAttribute('style') ?? ''} />
+    {:else if dom.tagName === 'A'}
+        <a target="_blank" rel="noreferrer" href={
+            (dom.getAttribute('href') && dom.getAttribute('href').startsWith('https')) ? dom.getAttribute('href') : ''
+        } class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </a>
+    {:else if dom.tagName === 'SPAN'}
+        <span class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </span>
+    {:else if dom.tagName === 'DIV'}
+        <div class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </div>
+    {:else if dom.tagName === 'P'}
+        <p class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </p>
+    {:else if dom.tagName === 'H1'}
+        <h1 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h1>
+    {:else if dom.tagName === 'H2'}
+        <h2 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h2>
+    {:else if dom.tagName === 'H3'}
+        <h3 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h3>
+    {:else if dom.tagName === 'H4'}
+        <h4 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h4>
+    {:else if dom.tagName === 'H5'}
+        <h5 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h5>
+    {:else if dom.tagName === 'H6'}
+        <h6 class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </h6>
+    {:else if dom.tagName === 'UL'}
+        <ul class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </ul>
+    {:else if dom.tagName === 'OL'}
+        <ol class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </ol>
+    {:else if dom.tagName === 'LI'}
+        <li class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </li>
+    {:else if dom.tagName === 'TABLE'}
+        <table class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </table>
+    {:else if dom.tagName === 'TR'}
+        <tr class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </tr>
+    {:else if dom.tagName === 'TD'}
+        <td class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </td>
+    {:else if dom.tagName === 'TH'}
+        <th class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </th>
+    {:else if dom.tagName === 'HR'}
+        <hr class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''} />
+    {:else if dom.tagName === 'BR'}
+        <br class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''} />
+    {:else if dom.tagName === 'CODE'}
+        <code class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </code>
+    {:else if dom.tagName === 'PRE'}
+        <pre class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </pre>
+    {:else if dom.tagName === 'BLOCKQUOTE'}
+        <blockquote class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </blockquote>
+    {:else if dom.tagName === 'EM'}
+        <em class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </em>
+    {:else if dom.tagName === 'STRONG'}
+        <strong class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </strong>
+    {:else if dom.tagName === 'U'}
+        <u class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </u>
+    {:else if dom.tagName === 'DEL'}
+        <del class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </del>
+    {:else if dom.tagName === 'BUTTON'}
+        <button class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </button>
+    {:else if dom.tagName === 'STYLE'}
+        <!-- <div>
+            <style>
+                {dom.innerHTML}
+            </style>
+        </div> -->
+    {:else if dom.tagName === 'RISUTEXTBOX'}
+        {@render textBox()}
+    {:else if dom.tagName === 'RISUICON'}
+        {@render icon()}
+    {:else if dom.tagName === 'RISUBUTTONS'}
+        {@render icons()}
+    {:else if dom.tagName === 'RISUGENINFO'}
+        {@render genInfo()}
+    {:else if dom.tagName === 'STYLE'}
+        <svelte:element this={'style'}>
+            {dom.innerHTML}
+        </svelte:element>
+    {:else}
+        <div class={dom.getAttribute('class') ?? ''} style={dom.getAttribute('style') ?? ''}>
+            {@render renderChilds(dom)}
+        </div>
+    {/if}
+
+    
+{/snippet}
+
+{#snippet renderChilds(dom:HTMLElement)}
+    {#each dom.children as node}
+        {@render renderGuiHtmlPart((node as HTMLElement))}
+    {/each}
+{/snippet}
+
 <div class="flex max-w-full justify-center risu-chat" style={isLastMemory ? `border-top:${DBState.db.memoryLimitThickness}px solid rgba(98, 114, 164, 0.7);` : ''}>
     <div class="text-textcolor mt-1 ml-4 mr-4 mb-1 p-2 bg-transparent flex-grow border-t-gray-900 border-opacity-30 border-transparent flexium items-start max-w-full" >
         {#if DBState.db.theme === 'mobilechat' && !blankMessage}
@@ -390,12 +545,14 @@
                     {@render icons({applyTextColors: false})}
                 </div>
             </div>
+        {:else if DBState.db.theme === 'customHTML' && !blankMessage}
+            {@render renderGuiHtmlPart(RenderGUIHtml(DBState.db.guiHTML))}
         {:else}
             {@render icon({rounded: DBState.db.roundIcons})}
             <span class="flex flex-col ml-4 w-full max-w-full min-w-0 text-black">
-                <div class="flexium items-center chat">
+                <div class="flexium items-center chat-width">
                     {#if DBState.db.characters[$selectedCharID]?.chaId === "§playground" && !blankMessage}
-                        <span class="chat text-xl border-darkborderc flex items-center">
+                        <span class="chat-width text-xl border-darkborderc flex items-center">
                             <span>{name === 'assistant' ? 'Assistant' : 'User'}</span>
                             <button class="ml-2 text-textcolor2 hover:text-textcolor" onclick={() => {
                                 DBState.db.characters[$selectedCharID].chats[DBState.db.characters[$selectedCharID].chatPage].message[idx].role = DBState.db.characters[$selectedCharID].chats[DBState.db.characters[$selectedCharID].chatPage].message[idx].role === 'char' ? 'user' : 'char'
@@ -403,7 +560,7 @@
                             }}><ArrowLeftRightIcon size="18" /></button>
                         </span>
                     {:else if !blankMessage && !$HideIconStore}
-                        <span class="chat text-xl unmargin text-textcolor">{name}</span>
+                        <span class="chat-width text-xl unmargin text-textcolor">{name}</span>
                     {/if}
                     {@render icons()}
                 </div>
@@ -412,21 +569,4 @@
             </span>
         {/if}
     </div>
-</div>
-
-
-<style>
-    .flexium{
-        display: flex;
-        flex-direction: row;
-        justify-content: flex-start;
-    }
-    .chat{
-        max-width: calc(100% - 0.5rem);
-        word-break: normal;
-        overflow-wrap: anywhere;
-    }
-    .translating{
-        color: rgba(16, 185, 129, 1);
-    }
-</style>
\ No newline at end of file
+</div>
\ No newline at end of file
diff --git a/src/lib/Setting/Pages/DisplaySettings.svelte b/src/lib/Setting/Pages/DisplaySettings.svelte
index c41cc439..d0923bdb 100644
--- a/src/lib/Setting/Pages/DisplaySettings.svelte
+++ b/src/lib/Setting/Pages/DisplaySettings.svelte
@@ -57,7 +57,7 @@
         <OptionInput value="mobilechat" >Mobile Chat</OptionInput>
         <OptionInput value="cardboard" >CardBoard</OptionInput>
 
-        <!-- <OptionInput value="custom" >Custom GUI</OptionInput> -->
+        <OptionInput value="customHTML" >Custom HTML</OptionInput>
     </SelectInput>
 
     {#if DBState.db.theme === "custom"}
@@ -67,6 +67,12 @@
     {/if}
 
 
+    {#if DBState.db.theme === 'customHTML'}
+        <span class="text-textcolor mt-4">{language.chatHTML} <Help key="chatHTML"/></span>
+        <TextAreaInput bind:value={DBState.db.guiHTML} />
+    {/if}
+
+
     {#if DBState.db.theme === "waifu"}
         <span class="text-textcolor mt-4">{language.waifuWidth}</span>
         <SliderInput min={50} max={200} bind:value={DBState.db.waifuWidth} />
diff --git a/src/lib/UI/GUI/TextAreaResizable.svelte b/src/lib/UI/GUI/TextAreaResizable.svelte
index fa152149..6b4b2d9a 100644
--- a/src/lib/UI/GUI/TextAreaResizable.svelte
+++ b/src/lib/UI/GUI/TextAreaResizable.svelte
@@ -35,7 +35,7 @@
     oninput={handleInput}
     use:longpress={handleLongPress}
     bind:value={value}
-    class="rounded-md p-2 text-textcolor bg-transparent resize-none overflow-y-hidden border border-darkborderc"
+    class="rounded-md p-2 text-textcolor bg-transparent resize-none overflow-y-hidden border border-darkborderc w-full"
     style:font-size="{0.875 * (DBState.db.zoomsize / 100)}rem"
     style:line-height="{(DBState.db.lineHeight ?? 1.25) * (DBState.db.zoomsize / 100)}rem"
 ></textarea>
\ No newline at end of file
diff --git a/src/styles.css b/src/styles.css
index 4a8eaab9..a1711efe 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -254,4 +254,15 @@ html, body{
 
 .z-100{
   z-index: 100;
+}
+
+.flexium{
+  display: flex;
+  flex-direction: row;
+  justify-content: flex-start;
+}
+.chat-width{
+  max-width: calc(100% - 0.5rem);
+  word-break: normal;
+  overflow-wrap: anywhere;
 }
\ No newline at end of file
diff --git a/src/ts/storage/database.svelte.ts b/src/ts/storage/database.svelte.ts
index b3e00135..e6a1fb15 100644
--- a/src/ts/storage/database.svelte.ts
+++ b/src/ts/storage/database.svelte.ts
@@ -813,6 +813,7 @@ export interface Database{
     groupTemplate?:string
     groupOtherBotRole?:string
     customGUI:string
+    guiHTML:string
 }
 
 export interface customscript{